/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/FaceGroupUtil.h
Find list of triangles in Mesh with specific group id
namespace FaceGroupUtil { bool FaceGroupUtil::FindTrianglesByGroup ( [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) & Mesh, int32 FindGroupID, [TArray](API\Runtime\Core\Containers\TArray)< int32 > & TrianglesOut ) }